Name: Shelly Plus i4
Brand: Shelly
Price: 12.99 GBP
Availability: OutOfStock

Shelly Plus i4

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£12.99 - £12.99

£12.99

£12.99 - £12.99

£12.99

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Shelly Plus i4 is a Wi-Fi-operated digital input controller designed for advanced scene control and automation triggering. It connects directly to your Wi-Fi network with no hub required and acts purely as an input reader (no relays included), making it ideal for controlling scenes, actions, and complex automations. Powered by a fast ESP32 processor, Shelly Plus i4 supports multi-click inputs, JavaScript scripting, and advanced integrations, and is designed to fit neatly behind standard wall switches and electrical boxes.

Key Features

Wi-Fi-operated 4-channel digital input controller with no hub required
Input reader only, does not contain relays
Four independent AC inputs for switches or buttons
Multi-click support with up to 12 possible actions per input
Powered by ESP32 with improved API performance
JavaScript support for custom logic and complex scenarios
Embedded web server for local configuration
Compatible with Amazon Alexa, Google Assistant, and Home Assistant
Supports REST API, MQTT, and webhooks

Use Cases

Scene and Automation Control

Manually trigger scenes, routines, or automations using wall switches or buttons.

Multi-Action Button Control

Use single, double, long, or combination presses to control multiple devices or actions from a single switch.

Retrofit Smart Control

Upgrade existing wall switches to smart controls without replacing lighting or adding relays.

Advanced Home Automation

Create complex automation logic using JavaScript, REST API, MQTT, or webhooks.

What’s Included

Shelly Plus i4 input controller

Technical Specifications

Power

Power supply AC: 110–240V ±10%, 50/60Hz

Power supply DC: No

Inputs

Channels: 4 AC input channels

Multi-click support: Up to 12 possible actions per input

Special Functions

Device temperature protection: Yes

Overload protection: No

Features

HTTP/HTTPS webhooks: Yes

Custom scripts (mJS): Yes

Operational temperature: -20°C to +40°C

Device power consumption: < 1 W

Intelligent on/off: Yes

Local and remote control: Yes

Sunrise/sunset: Yes

Weekly schedule: Yes

Connectivity

Wireless: Yes

Wi-Fi protocol: 802.11 b/g/n

Wi-Fi radio frequency: 2412–2472 MHz

Wi-Fi radio signal power: 1 mW

Wi-Fi range: Up to 50 m outdoors and up to 30 m indoors (depending on building materials)

Dimensions

Size: 42 × 38 × 17 mm